From: Bastian Blank <bastian@waldi.eu.org>
To: linux-kernel@vger.kernel.org,
"Eric W. Biederman" <ebiederm@xmission.com>,
Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>
Subject: Re: 2.6.18 - check for chroot, broken root and cwd values in procfs
Date: Sat, 14 Oct 2006 01:06:17 +0200 [thread overview]
Message-ID: <20061013230617.GA15489@wavehammer.waldi.eu.org> (raw)
In-Reply-To: <20061012140224.GA7632@wavehammer.waldi.eu.org>
[-- Attachment #1: Type: text/plain, Size: 524 bytes --]
On Thu, Oct 12, 2006 at 04:02:24PM +0200, Bastian Blank wrote:
> The commit 778c1144771f0064b6f51bee865cceb0d996f2f9 replaced the old
> root-based security checks in procfs with processed based ones.
The new behaviour even allows a user to escape from the chroot by using
chdir to /proc/$pid/cwd or /proc/$pid/root of a process he owns and
lives outside of the chroot.
Bastian
--
Punishment becomes ineffective after a certain point. Men become insensitive.
-- Eneg, "Patterns of Force", stardate 2534.7
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]
next prev parent reply other threads:[~2006-10-13 23:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-12 14:02 Bastian Blank
2006-10-12 14:21 ` Andreas Schwab
2006-10-13 23:06 ` Bastian Blank [this message]
2006-10-14 3:02 ` Eric W. Biederman
2006-10-21 10:16 ` Willy Tarreau
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20061013230617.GA15489@wavehammer.waldi.eu.org \
--to=bastian@waldi.eu.org \
--cc=akpm@osdl.org \
--cc=ebiederm@xmission.com \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@osdl.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®